1
Associate Professor, Dept of Periodontics, School of Dentistry and Dental Research Center of Mashhad University of Medical Sciences, Mashhad, Iran
2
Associate Professor, Dept of Periodontics, Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
3
Assistant Professor, Dept of Maxillofacial Pathology, School of Dentistry and Dental Research Center of Mashhad University of Medical Sciences, Mashhad, Iran
